What was found
(CAN) WING ANTI-ICE FAIL O FLIGHT RETURNED DUE TO WEATHER O NO FAULTS POSTED WHEN AIRCRAFT RETURNED O FAULT CODE 3012F0010 LT AND RT WING ANTI-ICE SENSOR INOP FAULT O REPLACED IASC 1, PN 70071A010101, SN OFF 00269, SN ON 70071 O WIRING CHECKS COMPLETED O OK FOR SERVICE (TC# 20190513012)